General Description

The 8V79S674 is a clock divider and fanout buffer. The device has

been designed for clock signal division in wireless base station radio

equipment boards. The device is optimized to deliver excellent

additive phase jitter performance. The 8V79S674 uses SiGe

technology for an optimum of high clock frequency and low phase

noise performance, combined with high power supply noise rejection.

The device offers the frequency division by ÷1, ÷2, ÷4 and ÷8. Four

low-skew LVPECL outputs are available and support clock output

frequencies up to 2500MHz (÷1 frequency division). Outputs can be

disabled to save power consumption if not used. The device is

packaged in a lead-free (RoHS 6) 20-lead VFQFN package. The

extended temperature range supports wireless infrastructure,

telecommunication and networking end equipment requirements.

Features

• Clock signal division and distribution

• SiGe technology for high-frequency and fast signal rise/fall times

• Four low-skew LVPECL clock outputs

• Supports frequency division of ÷1, ÷2, ÷4 and ÷8

• Maximum frequency: 2500MHz

• Maximum output skew: 50ps (maximum)

• Maximum LVPECL output rise/fall time: 200ps (maximum)

• 3.3V or 2.5V core and output supply mode

• Supports 1.8V I/O logic levels for all control pins

• -40°C to 85°C ambient operating temperature

• Available in lead-free (RoHS 6) package